2 This file is part of systemd.
4 Copyright 2011 Lennart Poettering
6 systemd is free software; you can redistribute it and/or modify it
7 under the terms of the GNU Lesser General Public License as published by
8 the Free Software Foundation; either version 2.1 of the License, or
9 (at your option) any later version.
11 systemd is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public License
17 along with systemd; If not, see <http://www.gnu.org/licenses/>.
22 #include "sd-daemon.h"
23 #include "sd-messages.h"
25 #include "format-util.h"
26 #include "journal-authenticate.h"
27 #include "journald-kmsg.h"
28 #include "journald-server.h"
29 #include "journald-syslog.h"
32 int main(int argc
, char *argv
[]) {
37 log_error("This program does not take arguments.");
41 log_set_target(LOG_TARGET_SAFE
);
42 log_set_facility(LOG_SYSLOG
);
43 log_parse_environment();
50 r
= server_init(&server
);
54 server_vacuum(&server
, false);
55 server_flush_to_var(&server
, true);
56 server_flush_dev_kmsg(&server
);
58 log_debug("systemd-journald running as pid "PID_FMT
, getpid_cached());
59 server_driver_message(&server
,
60 "MESSAGE_ID=" SD_MESSAGE_JOURNAL_START_STR
,
61 LOG_MESSAGE("Journal started"),
64 /* Make sure to send the usage message *after* flushing the
65 * journal so entries from the runtime journals are ordered
66 * before this message. See #4190 for some details. */
67 server_space_usage_message(&server
, NULL
);
70 usec_t t
= USEC_INFINITY
, n
;
72 r
= sd_event_get_state(server
.event
);
75 if (r
== SD_EVENT_FINISHED
)
78 n
= now(CLOCK_REALTIME
);
80 if (server
.max_retention_usec
> 0 && server
.oldest_file_usec
> 0) {
82 /* The retention time is reached, so let's vacuum! */
83 if (server
.oldest_file_usec
+ server
.max_retention_usec
< n
) {
84 log_info("Retention time reached.");
85 server_rotate(&server
);
86 server_vacuum(&server
, false);
90 /* Calculate when to rotate the next time */
91 t
= server
.oldest_file_usec
+ server
.max_retention_usec
- n
;
95 if (server
.system_journal
) {
98 if (journal_file_next_evolve_usec(server
.system_journal
, &u
)) {
107 r
= sd_event_run(server
.event
, t
);
109 log_error_errno(r
, "Failed to run event loop: %m");
113 server_maybe_append_tags(&server
);
114 server_maybe_warn_forward_syslog_missed(&server
);
117 log_debug("systemd-journald stopped as pid "PID_FMT
, getpid_cached());
118 server_driver_message(&server
,
119 "MESSAGE_ID=" SD_MESSAGE_JOURNAL_STOP_STR
,
120 LOG_MESSAGE("Journal stopped"),
124 server_done(&server
);
126 return r
< 0 ? EXIT_FAILURE
: EXIT_SUCCESS
;